A multi-dimensional quasi-discrete model for the analysis of Diesel fuel droplet heating and evaporation

摘要: A new multi-dimensional quasi-discrete model is suggested and tested for the analysis of heating evaporation Diesel fuel droplets. As in original earlier, components with close thermodynamic transport properties are grouped together to form quasi-components. In contrast model, takes into account contribution not only alkanes, but also various other groups hydrocarbons fuels; quasi-components formed within individual groups. Also, contributions approximated by distribution function carbon numbers. The formation based on taking without any approximations. Groups contributing small molar fractions composition (less than about 1.5%) replaced characteristic components. actual simplified six groups: cycloalkanes, bicycloalkanes, alkylbenzenes, indanes & tetralines, naphthalenes, 3 C19H34 (tricycloalkane), C13H12 (diaromatic), C14H10 (phenanthrene). It shown that approximation 15 components, leads errors estimated temperatures times typical engine conditions exceeding 3.7% 2.5% respectively, which acceptable most engineering applications.